You mean like this?
Ive got a Mossberg 500 with an ATI collapsible stock & Breaching barrel. Holds like 6 shells +1 in the chamber. Looking to get the ATI side saddle on there as soon as I can find one cheap enough. i wont pay 90+ dollars for something to hold 6 shells, sorry lol. Nice choice though. Looks like you have alot of room in the safe for more.